I am upgrading my protein skimmer since the one i have is rated for a way smaller tank. My LFS have the Coralife 125 skimmer hob , i can only go hang on the back and my budget is 300, are these skimmers decent anyone with experience with them .
Here you go, Hang on Back HOB Reef Octopus Protein Skimmers All of the ones there will be better than the coralife. And most of them are under $300, I'm currently using the BH-100SS on my 75g
The Coralife is not bad, but a lot of people have problems with it because it tends to flood often. Use at your own risk! The Octopus ones that Brian linked to are much better.